— Have you ever been to the Summer Palace?
— I can’t quite remember．_______, it might have been during my childhood.
A．If any B．If ever
C．If possible D．If so
— Your windows are still open? It’s so cold!
— Oh, sorry．They_______ ．
A．aren’t closing B．won’t close
C．won’t be closed D．aren’t closed
We believe the time and hard work _______ in completing such an important project are worthwhile.
A．involved B．involving
C．to involve D．to be involved
— Are you in favour of Tom’s suggestion_______ we work around the clock to meet the deadline?
— No．But ______ Jimmy suggested to me sounds practical．
A．which; what B．that; that
C．which; that D．that; what
We attend lectures in the school meeting room at weekend _______ seats more than 800 students．
A．which B．whose C．where D．it
How can you expect to get ahead in your life _______you even live to yourself from time to time?
A．though B．until C．before D．when
